F1 Testcross Progeny Phenotype Number
narrow 603
fast, ziązag 609
ZIgzag 209
fast, narrow 201
fast 221
ZIgzag, narrow 237
fast, zigzag, narrow 7
wild type 5
Suppose a geneticist is using a three-point testcross to map three linked Drosophila recessive mutations called f, z, and n, where f is associated with abnormally fast movement; z is associated with zigzag movement pattern; and n is associated with narrow wings. The geneticist first crosses homozygous narrow flies to homozygous fast, zigzag flies. Next, she testcrosses the F1 progeny to fast, zigzag, narrow parents and obtains the following results. Based on these data, select the order of the three genes.
Answers: 1
Biology, 21.06.2019 20:00, lilrider777
Heyme with this one ❤ ☺❤ name the part of the cell concerned with the transmission of hereditary characters from parents to offspring. "i will mark brainlist "
Answers: 1
Biology, 22.06.2019 01:30, ayoismeisalex
Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.
Answers: 1
Biology, 22.06.2019 03:30, tez87
Cold case files recently began re-investigating an old murder case. the murder took place in the park; a young man, james, was hit over the head with a brick and killed. police suspected the jealous former boyfriend of james' wife, karen. whoever killed james may have washed their hands in a near-by bird bath as detectives found blood in the bird bath. since the murder took place before dna fingerprinting was available, the suspected killer, ronnie, went free. detectives are now reviewing the blood evidence using dna fingerprinting. based on the dna fingerprints of all possible suspects, who is james' killer?
Answers: 2
F1 Testcross Progeny Phenotype Number
narrow 603
fast, ziązag 609
ZIgzag 209
...
narrow 603
fast, ziązag 609
ZIgzag 209
...
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